Download FastSox

Installation Steps

1. 1

   Click Download Now and save FastSox-latest-win-x64.exe

   FastSox-latest-win-x64.exe
2. 2

   Double-click to run. If a SmartScreen blue dialog appears, click More info → Run anyway. If your antivirus flags it, choose Allow or temporarily disable real-time protection and retry.

   Edge blocked the download?

   Microsoft Edge may block the installer with a warning bar at the bottom of the browser.

   Microsoft Edge

   FastSox-latest-win-x64.exe···

   1. 1Click the … (More actions) button next to the blocked file
   2. 2Select Keep
   3. 3If prompted again, click Show more → Keep anyway

   Why does this prompt appear? Is this normal?

   FastSox is signed with an OV (Organization Validated) code signing certificate — the standard for legitimate commercial software. Your download is safe and verified.

   However, Windows SmartScreen does not just check whether software is signed — it also weighs the publisher's download history, or "reputation". Newly released software, no matter how clean or properly certified, gets flagged simply for not having enough installs yet.

   We are a team dedicated to building quality software and services for our users. This is the invisible barrier Windows imposes on every growing publisher — Microsoft quietly shifts the cost of building "reputation" onto developers and their users. Following the steps above is completely safe.

   Windows protected your PC

   Windows SmartScreen prevented an unrecognized app from starting...

   AClick More info

   BThen click Run anyway
3. 3

   After installation, open FastSox, sign in to your account, and connect.

   Installation complete, you're connected!